There are few producers busier than Julie Plec, who has the weight of The CW on her shoulders. Plec is behind that network’s smash hit The Vampire Diaries, as well as two freshman series this season: The Tomorrow People and The Originals. In The Originals (Tuesdays, 8/7c), a spinoff of TheVampire Diaries, Plec moved Vampires baddie Klaus (Joseph Morgan) and his bloodsucking siblings to New Orleans, a city they helped build. Plec explains why we should go batty for The Originals.…